Hello.
When I began my crypto journey I could not buy certain products with GBP so although I live in London and will pay taxes in London I have bought everything in US dollars.
How do I set up my account so that it will work out all of my transactions carried out and if possible take the GBP to US dollars conversion rates at the time to make filing for tax easier.
Koinly automatically does the conversions based on the currency you set in your settings.
Check out How Koinly sets the market price for your transactions